In this work, the critical design factors in the development of an adapter capable of enabling
the use of projectiles that are of diameters less than the optimal 0.5 inches (in ballistics, a projectile
having a half inch diameter is commonly called a caliber .50 projectile) are explored. This recently-
patented slug adapter enables the users of the standard caliber .50 disruptor (the Mk 2 disruptor)
to successfully implement sub-caliber .50 projectiles. There are three critical design factors explored
in this work: 1) projectile support during launch, 2) gas pressure reduction during launch and 3) adapter failure during
Keywords: Caliber .50, design factors, disruptor, EOD, projectile adapter, slug adapter.
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